com.pnpconsult.zeiterfassung.util
Class SimpleExpressionParser

java.lang.Object
  com.pnpconsult.zeiterfassung.util.SimpleExpressionParser

public class SimpleExpressionParser

extends java.lang.Object

Parses simple mathematical expressions from Strings into doubles.

Following expressions are valid:

  ["-"]param1[ "+"|"-"|"*"|"/" ["-"]param2["%"]]
 

Where param1 and param2 are numbers of the usual pattern: #.##0,00 (Localedependent). They are parsed using DecimalFormat.

Version:

$Id: SimpleExpressionParser.java,v 1.3 2004/05/23 16:59:41 powerpete Exp $

Author:

M. Petersen

Method Summary

static double

parse(java.lang.String expression) Parses the given expression and returns the result as double.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

parse

public static double parse(java.lang.String expression)
                    throws java.text.ParseException

Parses the given expression and returns the result as double.

Parameters:

expression - A valid expression.

Returns:

The parsed value.

Throws:

java.text.ParseException - If the expression could not be parsed.